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Ooooh, wow. I didn't even know that was (practically) possible. I know it's theoretically possible!

I don't see why not. As an example, you could setup account just for your game. You have a server running that reads the Steem blockchain for certain codes that you have provided with the game physically. You wouldn't even need your own website if you don't want to. Just have users input certain tags and the code. If post with right attributes is spotted, you could vote the poster with your account. All of this could be done automatically by your code.

Of course doing your own website for it and adding visuals could be way cooler.

Once code is read, it gets deleted and can't be used again. Just as an example. All of the above is fairly easy to accomplish.

Really only your imagination gets to be limit here on how to do things, coding is a good hobby ,at least , to have :) With robots and AI coming, more and more will possible with it. At some point, if you can dream it, you can make it happen by coding.